Abstract
With the spectrum liberation obtained by the deployment of Digital Terrestrial Television (DTT) and the analog TV switch-off, new bands are being assigned to IMT Long Term Evolution (LTE). In the first cellular deployments in the digital dividend of Region 1, at the 800 MHz band, problems emerged when it was observed that the LTE Downlink could interfere to DTT signals. Possible solutions imply either an inefficient use of the spectrum (increasing the guard band and reducing the number of DTT channels) or a high cost (using anti-LTE filters for DTT receivers). In this paper, the coexistence problems between LTE and DTT services in the 800 MHz band is evaluated. To accomplish this, measured protection ratios for different configurations as well as planning studies in a real environment have been performed. In addition, potential
approaches for coexistence have been proposed in order to guarantee the performance of DTT services.
